Inventor
KOSAKA NOBUO
JP14 patents
⚠️ This page may combine multiple inventors who share the name “KOSAKA NOBUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
7 patentsUS9740117B2Aug 22, 2017
Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and condensed polycyclic aromatic compound
CANON KK21 citations94
US9389523B2Jul 12, 2016
Electrophotographic photosensitive member, and electrophotographic apparatus and process cartridge each including the electrophotographic photosensitive member
CANON KK20 citations92
US9316931B2Apr 19, 2016
Electrophotographic photosensitive member, electrophotographic apparatus, process cartridge, and condensed polycyclic aromatic compound
CANON KK22 citations92
US7838190B2Nov 23, 2010
Electrophotographic photosensitive member with surface layer of fluororesin particles and polyolefin with perfluoroalkyl group
CANON KK23 citations92
US7553594B2Jun 30, 2009
Electrophotographic photosensitive member, method of manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK26 citations92
US7364824B2Apr 29, 2008
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK12 citations82
US10209637B2Feb 19, 2019
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK0 citations41
KYOWA HAKKO KOGYO KK
6 patentsUS5413997AMay 9, 1995
Triphenylmethane derivatives
KYOWA HAKKO KOGYO KK7 citations72
US5891902AApr 6, 1999
Indole derivatives
KYOWA HAKKO KOGYO KK8 citations71
US5756735AMay 26, 1998
Xanthine derivatives
KYOWA HAKKO KOGYO KK3 citations63
US6306847B1Oct 23, 2001
Condensed purine derivatives
KYOWA HAKKO KOGYO KK4 citations60
US5374634ADec 20, 1994
Pyridine derivatives
KYOWA HAKKO KOGYO KK1 citations51
US5523464AJun 4, 1996
Benzenesulfonamide derivatives
KYOWA HAKKO KOGYO KK1 citations49